Test Types

Specimen

Standard

Tissue adhesives are widely used in the biomedical industry for applications such as bandages, secondary dressings, and wound closure. Although there are no specific standards that address testing using a variable angle fixture, other similar ASTM standards for this test method include: ASTM F2255, F2256, F2258 and F2458. The adhesive strength of these products must be clearly defined before put to use in a clinical setting. If the adhesive is not strong enough, the product may lead to infection or poor healing. If the adhesive is too strong, the underlying tissue may become damaged upon removal.

We conducted one example of an adhesive test by using a variable angle fixture that would simulate the action of peeling the adhesive off a patient. We used a 3345 electromechanical test frame configured with a 50 N load cell, a single 250 N capacity pneumatic grip with 25 mm x 25 mm flat metallic faces, and the variable angle peel fixture for this test. The variable angle peel fixture was set at a 135° angle, to best simulate the line of pull that would be seen during normal use of the adhesive product. We used leather as the substrate during this test to best simulate the surface properties of human skin.

The 3 Peel, Tear and Friction Software Module®Bluehill is highly recommended for this type of test. This software module allows for measurement of the first peak load, average load and average load per width, the most commonly used calculations.

Bluehill® 3 is the newest version of Instron’s widely popular Bluehill Software, designed to meet the demands of any level of user from educators and test technicians to, quality engineers and laboratory managers. Compatible with 5900, 3300 and 5500 systems.

Please choose a subscription optionOne or more required fields are empty, complete the form to continue.One or more fields contain formatting errors, fix the errors to continue.You must agree to Instron's Privacy Policy in order to continue.

“It is our objective at Instron to provide our customers the best ownership experience by delivering the highest quality products, expert support and world-class service.”